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Finding the Fourth Proportional to 117,677.76, 162,395.04 and 63,962.64

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Solution

The fourth proportional to 117,677.76, 162,395.04 and 63,962.64 is: 88,268.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,677.76 : 162,395.04 = 63,962.64 : x
  2. Step 2: Convert to fraction form
    117,677.76/162,395.04 = 63,962.64/x
  3. Step 3: Cross multiply
    117,677.76x = 162,395.04 × 63,962.64
  4. Step 4: Simplify right side
    117,677.76x = 10,387,215,481.31
  5. Step 5: Solve for x
    x = 10,387,215,481.31/117,677.76
  6. Step 6: Final answer
    x = 88,268.30

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.